CN209809584U - But solid phase extraction device of negative pressure suction - Google Patents
But solid phase extraction device of negative pressure suction Download PDFInfo
- Publication number
- CN209809584U CN209809584U CN201821993563.5U CN201821993563U CN209809584U CN 209809584 U CN209809584 U CN 209809584U CN 201821993563 U CN201821993563 U CN 201821993563U CN 209809584 U CN209809584 U CN 209809584U
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- Prior art keywords
- solid phase
- phase extraction
- filter
- collector
- tube
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Abstract
The utility model discloses a solid phase extraction device capable of sucking under negative pressure, which consists of a collector, a solid phase extraction tube, a filter, a collection bottle, a sealing bottle stopper, a glass tube with a cock and a two-way valve, wherein the sealing bottle stopper is positioned at the mouth of the collection bottle, the solid phase extraction tube, the glass tube with the cock and the two-way valve are positioned in the plug hole of the sealing bottle, the collector is connected with the solid phase extraction tube by screw thread, and the solid phase extraction tube is connected with the filter by screw thread; the other end of the collecting bottle is communicated with a vacuum pump. The utility model discloses having optimized the solid phase extraction device, having simplified operating procedure, improved extraction efficiency, reduced the device cost, the practicality is strong.
Description
Technical Field
The utility model relates to a chemistry experiment device field, in particular to novel solid phase extraction device.
Background
The solid phase extraction technology is a sample pretreatment technology developed from a chromatographic column for extraction, separation and concentration. The technology is widely applied to separation, purification and enrichment of samples in the fields of environment, pharmacy, clinical medicine, food and the like.
The solid phase extraction technology mainly separates a component to be detected from an interference component by depending on acting force between a bonding functional group on a solid adsorbent and a target analyte, and realizes separation and enrichment of a sample. The extraction process is highly dependent on the extraction equipment. The solid phase extraction equipment mainly comprises a filtering device, an extraction column, a vacuum pump and the like. Usually, the sample is poured into an extraction column, and the sample is made to pass through the extraction column by means of vacuumizing or centrifugation, so that the target substance in the sample is adsorbed on the filler of the solid phase extraction column, thereby achieving the separation and purification effects. However, such devices generally have high cost, complex structure, complex operation, slow extraction speed and difficult regulation and control, and restrict the development of solid phase extraction technology.
SUMMERY OF THE UTILITY MODEL
The utility model discloses the purpose is for solving but the solid phase extraction device of current negative pressure suction has that equipment cost is higher, the structure is complicated, complex operation, and the problem of extraction speed slow and difficult regulation and control provides a but solid phase extraction device of negative pressure suction.
A solid phase extraction device capable of sucking under negative pressure comprises a solid phase extraction device consisting of a collector 1, a solid phase extraction tube 2, a filter 3, a collection bottle 4, a sealing bottle stopper 5, a glass tube 6 with a cock and a two-way valve, wherein the sealing bottle stopper 5 is positioned at the mouth of the collection bottle 4, the solid phase extraction tube 2, the glass tube 6 with the cock and the two-way valve are positioned in a hole of the sealing bottle stopper 5, the collector 1 is in threaded connection with the solid phase extraction tube 2, and the solid phase extraction tube 2 is in threaded connection with the filter 3; the other end of the collection bottle 4 is communicated with a vacuum pump. The inside of the solid phase extraction column tube 2 is provided with an upper sieve plate and a lower sieve plate, and the lower part is provided with internal threads. The filter 3 comprises a connecting part 3-1 and a collecting part 3-2, 3-1 which are annular hollow, a filter membrane is arranged at the top, external threads are arranged around the filter membrane, and a sealing gasket is arranged at the top. The collector 1 is funnel-shaped, the bottom is provided with external threads, and the top is provided with a sealing gasket. The utility model has the advantages of as follows:
one, the utility model provides a but solid phase extraction device of negative pressure suction on the basis of solid phase extraction post, need not special treatment, can realize utilizing vacuum pressure solid phase extraction process with higher speed, reaches the effect of sample separation, enrichment, extraction.
Two, the utility model provides a but solid-phase extraction device of negative pressure suction, the suitability is strong, and extraction efficiency is high. Different negative pressure can be adjusted according to the actual sample treatment requirement, and the requirements of an analyst on establishment of a new method and new conditions in the sample separation and purification process are met to the maximum extent.
Thirdly, the utility model provides a but solid phase extraction device of negative pressure suction adopts the laboratory vacuum pump to realize whole solid phase extraction process, need not to purchase corresponding equipment again, and the method is simple, low cost.
Fourth, the utility model provides a but solid phase extraction device of negative pressure suction, the extract can directly be through the filter membrane filtration, and the extraction sample can directly be sent to the gas chromatography instrument and detect, and the filter membrane can be changed.
Therefore, the utility model discloses optimize the solid phase extraction device, simplified operating procedure, improved extraction efficiency, reduced the device cost, the practicality is strong.
Drawings
Fig. 1 is a schematic structural diagram of the present invention.
In the figure, the following steps are carried out: a collector 1, a solid phase extraction tube 2, a filter 3, a collection bottle 4, a sealing bottle stopper 5, a glass tube 6 with a cock and a two-way valve.
FIG. 2 is a schematic view of a column tube structure of a solid phase extraction column
In the figure, the following steps are carried out: an upper sieve plate 2-1, a lower sieve plate 2-2, a connecting part 3-1, a collecting part 3-2 and a filter membrane 3-3.
Detailed Description
The present invention is further explained with reference to the embodiments.
A solid phase extraction device capable of sucking under negative pressure comprises a collector, a solid phase extraction tube, a filter, a collection bottle, a sealing bottle plug, a glass tube with a cock and a two-way valve. The sealing bottle stopper is positioned at the opening of the collecting bottle, and the solid phase extraction tube, the glass tube with the cock and the two-way are positioned in the plug hole of the sealing bottle. The collector is connected with the solid phase extraction pipe by screw threads, and the solid phase extraction pipe is connected with the filter by screw threads; the other end of the collecting bottle is communicated with a vacuum pump. The inside of the solid phase extraction column tube 2 is provided with an upper sieve plate and a lower sieve plate, and the lower part is provided with internal threads. The filter 3 comprises a connecting part 3-1 and a collecting part 3-2, 3-1 which are annular hollow, a filter membrane is arranged at the top, external threads are arranged around the filter membrane, and a sealing gasket is arranged at the top. The collector 1 is funnel-shaped, the bottom is provided with external threads, and the top is provided with a sealing gasket. The top of the filter is provided with a filtering device. The sample is introduced into a collector and after extraction from the interior of the cartridge, the extract may be filtered through a filter membrane in a filter. The extraction and filtration speed can be manually adjusted by rotating the two-way cock to adjust the vacuum.
The above description is only the preferred embodiment of the present invention, and the protection scope of the present invention is not limited to the above embodiments. It should be noted that, for those skilled in the art, various modifications and decorations can be made without departing from the principle of the present invention, and these modifications and decorations should also be regarded as the protection scope of the present invention.
Claims (3)
1. A solid phase extraction device capable of sucking under negative pressure comprises a collector (1), a solid phase extraction tube (2), a filter (3), a collection bottle (4), a sealing bottle plug (5), a glass tube (6) with a cock and a two-way valve, wherein the sealing bottle plug (5) is positioned at the bottle mouth of the collection bottle (4), the solid phase extraction tube (2), the glass tube (6) with the cock and the two-way valve are positioned in the hole of the sealing bottle plug (5), the collector (1) is in threaded connection with the solid phase extraction tube (2), and the solid phase extraction tube (2) is in threaded connection with the filter (3); the other end and the vacuum pump intercommunication of collecting bottle (4), its characterized in that: the filter (3) comprises a connecting part (3-1) and a collecting part (3-2), the 3-1 is annular hollow, a filter membrane is arranged at the top, external threads are arranged on the periphery of the filter membrane, a sealing gasket is arranged at the top, extract liquor can be filtered by the filter membrane in the filter after being extracted from the inside of the cylinder, and the extraction and filtration speed can be manually adjusted by rotating the two-way cock to adjust the vacuum degree.
2. A solid phase extraction apparatus according to claim 1 wherein: an upper sieve plate and a lower sieve plate are arranged in the solid phase extraction tube (2), and an internal thread is arranged at the lower part.
3. A solid phase extraction apparatus according to claim 1 wherein: the collector (1) is funnel-shaped, external threads are arranged at the bottom of the collector, and a sealing gasket is arranged at the top of the collector.
Priority Applications (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993563.5U CN209809584U (en) | 2018-11-30 | 2018-11-30 | But solid phase extraction device of negative pressure suction |
Applications Claiming Priority (1)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| CN201821993563.5U CN209809584U (en) | 2018-11-30 | 2018-11-30 | But solid phase extraction device of negative pressure suction |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| CN209809584U true CN209809584U (en) | 2019-12-20 |
Family
ID=68868793
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| CN201821993563.5U Expired - Fee Related CN209809584U (en) | 2018-11-30 | 2018-11-30 | But solid phase extraction device of negative pressure suction |
Country Status (1)
| Country | Link |
|---|---|
| CN (1) | CN209809584U (en) |
Cited By (1)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230028821A1 (en) * | 2021-07-22 | 2023-01-26 | Richard Allen Vessey | Vacuum Infusion Process and Method |
-
2018
- 2018-11-30 CN CN201821993563.5U patent/CN209809584U/en not_active Expired - Fee Related
Cited By (2)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US20230028821A1 (en) * | 2021-07-22 | 2023-01-26 | Richard Allen Vessey | Vacuum Infusion Process and Method |
| US11937730B2 (en) * | 2021-07-22 | 2024-03-26 | Richard Allen Vessey | Vacuum infusion producer and method |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| GR01 | Patent grant | ||
| GR01 | Patent grant | ||
| CF01 | Termination of patent right due to non-payment of annual fee |
Granted publication date: 20191220 Termination date: 20201130 |
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| CF01 | Termination of patent right due to non-payment of annual fee |